Across
1
Group of similar cells
4
Nerve cell in the brain
5
Naturally occurring inorganic solid
6
Element found in all living things
8
Basic unit of life
9
Tissue that contracts for movement
Down
2
Chemical element in table salt
3
Push or pull on an object
4
Center of an atom or cell
7
Hottest planet in solar system
10
Substance with pH above 7